Leader-pipe.



No. 794,724. PATENTED JULY 18, 1905. R. MADSEN.

LEADER PIPE.

APPLICATION FILED MAY 10. 1905.

2 SHEETS-SHEET 1.

Qttovmap ANDREW B. muruu 0a.. umocmvuias, vusumowu. u. c

No. 794.724. PATENTED JULY 18, 1905.

R. MADSEN. Y

LEADER PIPE.

APPLICATION 21mm MAY 10. 1005.

2 sums-sum 2.

L Imusluoentoz 2X lmeoow iatented July 18, 1905 PATENT OFFICE.

RASMUS MADSEN, OF NEW YORK, N. Y.

LEADER-PIPE.

SPECIFICATION forming part of Letters Patent No. 794,724, dated July 18, 1905,

Application filed May 10,1905. Serial No. 259,735. 1

. To all] whom 71! HMI/Z/ concern;-

Be it known that I, RAsMUs MADsEN, a citizen of the United States, residing at New York, in the county of New York, State of New York, have invented certain new and useful Improvements in Leader Pipes; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to leader-pipes.

The object of the invention is to prevent freezing of the leader or to thaw any ice which may accumulate therein.

With the above object in view the present invention consistsin the combination and arrangement of parts, as will'be hereinafter more fully described, shown in the accompanying drawings, and particularly pointed out in the appended claims, it being understood that changes in the form, proportion, size, and minor details may be made within the scope of the claims without departing from the spirit or sacrificing any of the advantages of the present invention.

In the drawings, Figure 1 is an elevation, partly in section, illustrating one form of my invention. ,Fig. 2 is an elevation, partly in section, illustrating the connection of the gooseneck at the upper end of the upright portion of the feed-pipe. Fig. 3 is a modified form of the invention.

Referring now more particularly to the accompanying drawings, the reference character 1 designates the leader communicating at its lower end with a sewer-pipe 2, the upper end of the leader having the head 3.

Leading from the boiler or water-heater (not shown) is a feed-pipe 4, having its outer end piercing one wall of the leader near the latter end thereof and provided with a neck connection 5, with which is connected the upwardly-directed feed-pipe 6, which extends slightly above the opening of'the upper end of the head 3 of the leader, the said pipe- 6 being arranged centrally of the latter.

The feed-pipe 4 is provided with a valve 7 to cut off or permit of the flow of hot water or steam through the feed-pipes 4 and 6.

When hot water is employed, the cap 8 is removed from the upper end of the feed-pipe 6 to permit of a screw-threaded or other enagement of the gooseneck 9 by means of which the hot water may be directed downwardly within the leader, from which it may pass to the sewer by way of the sewer-pipe connection 2. When the ice within the leader has been thawed sufficiently, the valve 7 is manipulated to prevent the further flow of hot water through the feed-pipes, and in order to prevent retention of water within the feed-pipes, so that freezing thereof will not result, there is connected in the line of the feed-pipe 4 an elbow 10, having a drainipe 11 connected thereto and leading into the sink 12, from which the water may be drained by means of the gooseneck-pipe 13,

leading into the sewer-pipe connection 2, there being a valve 14 arranged in the line of the drain-pipe 11 near the sink, the said pipe 11 being arranged upon a downward incline with respect to the feed-pipe connection 7. It will thus be seen that hot water may be conveyed directly from the boiler or. heater (not shown) and directed into the leader at the top thereof and pass outwardly there from' at its bottom through the sewer-pipe by the connection 2 and that drainage of the feed-pipes is provided for. In the event it is desired to steam the leader-pipe the gooseneck 9 is removed from the upper end of the feed-pipe connection 6 and the cap 8 placed thereon, there being an air-valve 15 connected at the upper end of the feed-pipe 6 when the steam is used for thawing pur poses, and it will be understood that the steam may be conveyed through the feedpipes in the manner stated with respect to the use of hot water. It is apparent that the condensation of the steam may be drained through the aforesaid feed-pipe drain connection in-the same manner as is to drain the hot water which may be left in the feed-pipes after closing of the valves 7.

The upper end of the feed-pipe 6 is held centrally of the leader 1 through the instrumentality of a suitable spider fastening or the like 16, as well understood.

If desired, the steam-feed pipe 17, having a valve 18, may be Connected directly to the boiler or heater (not shown) and piercing one side of the wall of the leader 1 at the lower end thereof and terminating immediately at its entrance within the leader, the steam passing upwardly within the leader to thaw any ice therein or to prevent the freezing of ice a feed-pipe piercing one side wall thereof 20 near its bottom and extending upwardly above the upper end thereof, the said feedpipe being adapted to convey a heated fluid through the leader-pipe, a sewer-pipe connecting the lower end of the leaderpipe, a sink, a pipe connection between the sink and the sewer-pipe and a drain-pipe connection between the feed-pipe and the sink.

2. The combination with a leader-pipe, of means for conveying a heated fluid therethrough, a sewer-pipe connected at the lower end of the leader-pipe, a sink, a pipe connection between the sink and the leader-pipe, a drain-pipe between the said means and the sink, and a valve disposed in the line of the drain-pipe.

In testimony whereof I aflix my signature in presence of two witnesses.

RASMUS MADSEN.

Witnesses:

I-IANs SKAU, PETER O. RAsMUssEN. 

